The North Fork [Stillaguamish] rises as several branches in a remote area of Skagit County near Finney Peak, approximately 10 miles (16 km) north of Darrington.
Rattlesnake Lake (Wikipedia) Rattlesnake Lake is a lake in the northwest United States, located in Rattlesnake Mountain Scenic Area in King County, Washington, approximately thirty miles (50 km) east of Seattle, south of Interstate 90.